What size jets are you running with a full system?

Moderator: Moderators

Post Reply
User avatar
hciR
zxr400 oc member
zxr400 oc member
Posts: 249
Joined: Wed Aug 23, 2006 9:06 pm
My Bike: zxr 400
Location: Surrey

What size jets are you running with a full system?

Post by hciR »

Got the bike on the road today but think I overdone the jetting. Was recommended to use a 112 by the supplier but think this is too high. The bike ran pants. Was smooth until about 5k, then went really spluttery and would not got past about 8k no matter how hard I tried. So what do you use?
sloweracing
zxr400 oc member
zxr400 oc member
Posts: 307
Joined: Sun Mar 28, 2004 8:34 am
My Bike: tomos moped
Contact:

Post by sloweracing »

Well on the race bikes we block off the main air correcter jets and run about 110 - 112 that should sort it and run like a dream

Chemical metal in the air correctors works well with no problems but can be a pain to drill out if needed to not that you would

Think on the road bike it takes a bit of time to start or get the nak any way dont use to much throttle and choke
User avatar
hciR
zxr400 oc member
zxr400 oc member
Posts: 249
Joined: Wed Aug 23, 2006 9:06 pm
My Bike: zxr 400
Location: Surrey

Post by hciR »

I tried putting the original 95 main jets in and it ran alot better, didn't want to go past 10k but lots of power until then. Where abouts are the air correcter jets? Also have you removed the 'top hat' type air filter at the top of the airbox?
sloweracing
zxr400 oc member
zxr400 oc member
Posts: 307
Joined: Sun Mar 28, 2004 8:34 am
My Bike: tomos moped
Contact:

Post by sloweracing »

Sorry mine was a H2 not a L model but i ran a race air box

You would need some one to show you where abouts these holes are on the carbs but they are at the top in the middle when you take off the bellmouths

Simon Lowes
http://www.sloweracing.co.uk
zimm
zxr400 oc member
zxr400 oc member
Posts: 2317
Joined: Tue Oct 10, 2006 12:32 am
My Bike: ZXR400-M4, ZX4, ZX6R.
Location: Herefordshire

Post by zimm »

im running 110 mains with dynojet needles KnN filter, snorkel removed and a full micron system .. works for me ..

with standard filter/airbox, needles and full system i'd run 100's

course your bike may respond best to different settings .. ebst to get it on a dyno really .
Post Reply